Police, fire and Paramedics have all been called to an incident involving an unknown chemical found in a handbag this evening. Emergency services were all called to the Sainsbury on The Mall in Stratford in East London just before 8.30pm on Monday evening. Paramedics from the London Ambulance service are understood o have bene treat a number of people effected by the find. The incident in ongoing and the Met Police have been approached for comment. More to follow